Appliance for severing embroidered web.



No. 878,111. PATENTBD FEB. 4, 190a.

; A. BOSSHARD.

APPLIANOB'POR SEVERING EMBROIDERED WEB.

APPLICATION FILED FEB.4,190 I.

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PATENTED FEB. 4, 1908.

' A. BOSSHYARD. APPLIANCE FOR SEVERING EMBROIDERED WEB.

APPLICATION FILED IEB.4,1907.

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Jizmwzfora- UNITED STATES PATENT BEIGE.

ARNOLD BOSSHARD, OF ARBON, SWITZERLAND, ASSIGNOR TO THE FIRM OF AKIIEN-GESELLSOHAFT ARNOLD B. HEINE & CO, OF ARBON, SWITZERLAND.

Specification of Letters Patent.

Patented Feb. 4, 1908.

Application filed February 4. 1907. Serial No. 355714- To all whom itmay concern:

Be it known that I, ARNOLD BOSSHARD, a citizen of the Republic ofSwitzerland,'residing at Arbon, in Switzerland, have invented certainnew and useful Improvements in Apliances for Severing Embroidered Web;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled intheart to which it appertains to make. and use the a same, reference beinghad to the accompanying drawings, and to letters or figures of referencemarked thereon, which form a part of this speclficatlon.

In making embroidered strips, insertions,

bands with festoons, etc, by machinery, the usual practice is toembroider a succession of rows of the pattern on a common web of fabric.After completion of the embroidering the various separate embroideredpattern-rows are separated from each other by the web being cut throughby hand with a pair of scissors, along the dividing-line, the rows beingthus detached in succession.

According to the present invention this tedious operation is obviated bythe employment of an appliance, whereby on the dividing-lines of all thevarious pattern-rows the -web is simultaneously partially destroyed bybeing corroded away.

The severance is effected by the provision of tubular arms with nozzlesabove the web, in the spaces between thepattern-rows, which nozzlescommunicate with a corroding fluid feed pipe and are borne by springpressure against the edge of the embroidery at the dividing-lines ofeach attern-row. When, therefore, the web trave s forward the nozzlesrub against the edges of the embroidered pattern and thus deposit a verythin line of corrosive fluid along the parts at which the scissors wereformerly applied, so that when the web subsequently passes over dryingcylinders the rows are detached owing to the carbonizing action at thesaid parts. 7

One form of construction of the new appliance is shown in theaccompanying drawing, in which Figure 1 is a vertical section, Fig. 2 aplan, Fig. 3 shows a severing device in side elevation, Fig.4 the samein front elevation, Fig. 5 a vertical section and Fig. 6 a plan partlyin horizontal section, and Fig. 7, is an enlarged section showing therelation of the collar to the liquid supply chamber and suction chamber.

1 is the web of fabric which has been embroidered with the pattern-rowsa-i (Fig. 2) and can be conducted over a table 2 in the direction of thearrow.

3 is a beam located transversely to the table and supported in'uprights4 in such manner that it can be vertically adjusted. Near its two endsthe cross beam 3 is provided with vertical racks 5 with which meshpinions 6 mounted on a shaft 7 that is supported in bearings on theuprights 4 and at one end of which shaft a crank handle 8 is provided(Fig. 4). This shaft is also furnished in well known manner with adevice (not shown in the drawing) whereby the crank 8 can be held in itsvarious positions. To the cross beam 3 there are also secured oppositethe space between the pattern-rows, carriers 9 which embrace the beam 3,but leave a free space above and below it, so that they may bevertically moved. These carriers are fixed by means of set screws 10passing through the carriers. In the carriers there engage verticalslides 11, which can be adjusted vertically by means of screw spindles12. These slides each support a cylinder 13, through which there looselypasses a pipe 14, bent below so as to constitute a tubular arm 15,provided with a nozzle 16. l/Vithin the cylinder is a spiral spring(Fig. 5) one end of which is secured to the cylinder at a and the otherend to the head a in which pipe 14 is secured, in such manner that ithas always the tendency to turn the tubular arm 15 in the direction ofthe arrow Fig. 6. The head a or top of the cylinder 13 is frictionallyheld in upper split end 13'" of the cylinder. Screwed into this head. isa box I) in the lower end of which the pipe 14 is rigidly secured andthis box I) being threaded may be rigidly connected to the head .a andpartake of its movements. In the upper end of the box I; is screwed athreaded gland 0 serving to secure the lower end of pipe 14 to the boxI) said pipe 14 being of yielding material.

20 is a feed pipe for a corrosive liquid. This pipe is divided by apartition 17 into two chambers 18, 19, of which the latter communicateswith a corrosive fluid reservoir (not shown in the drawing), while thechamber 18 is connected with a suction device (likewise notillustrated). Above the carriers 9 collars 21 are provided on the pipe20, each collarhaving a nipple with passage 22 (Fig. 7), into which theupper end of pipe 14 fits. By turning the collar 21 on pipe 20 thepassage 22 can be caused to communicate either with the aperture 23leading to the chamber 18 on one side of the partition 17- or theaperture 24 through the pipe to the chamber 19 on the other side of thepartition. To each carrier 9 is affixed a rod 25, the top of which has aloop 25 that engages the collar 21 in such-wise that when the carrier 9moves u ward, the rod 25 also moves up and the co lar 21 is rotated onthe pipe 20 to bring the pipe 14 into register with the hole 23 of thesuction chamber '18.

Above the cross beam 3 an eccentric 26 is located in each carrier 9,actuated from without by means of a hand wheel 27 for the purpose ofmoving the individual carriers into either of their positions. A and'Bare drying cylinders.

The operation of the appliance is as fol lows: The tubular arms 15 withtheir nozzles 16 are so adjusted that each nozzle (Fig. 6) pressesagainst the edge 28 of the embroidery of its pattern-row, that is, abovethe dividing-line 29. when the web 1 travels in the direction of thearrow (Figs. 1 and 2) a thin stream of corrosive fluid flows alongthedividing-line, and this liquid, on the web passing the dryingcylinders A and B and owing to the carbonizing action of the latter,eats away the web fabric 1 along the line of demarcation and thus causesseverance of the pattern-rows from each other. The spring in thecylinder 13 tends to rotate the pipe 14 and arm 15 and urges the nozzleagainstthe relief embroidery so as always to follow the contour of thepattern-row.

By means of the crank handle 8 all the carriers 9, and therefore all thenozzles 16, can be raised simultaneously and thus brought out of actionby reason of the beam 3 that carries them being raised while at the sametime by means of the rods 25 all the pipes 14 will be cut oil from thecorrosive fluid feed pipe and brought into communication with thesuction pipe. The corrosive fluid remaining in the pipe 14 is thussucked back, so that it can no longer flow from the nozzle 16.

By loosening the set screw 10 and then rotating the eccentric 26 by thehand wheel 27, each individual carrier 9 can be raised and thus broughtout of action, the pipe 14 at the same time being brought into com-'munication with the suction chamber 18, to withdraw the corrosive liquidfrom the pipe 14.

I claimc 1. In an embroidered web severing appliance, in combination, aplurality of spring controlled tubular arms provided with nozzles whichbear against the edge of the embroidery of each pattern row, meanslocated above the Web for supporting the nozzle pipes, and means forfeeding corrosive fluid to the nozzles, substantially as described.

" 2. In an embroidered web severing appliance, in combination, aplurality of corrosive fluid feed pipes constituting tubular armsprovided with nozzles which bear against the edge of the embroidery ofeach patternpasses, a coiled spring within the cylinder attached at oneend to the latter and at the other end.to the pipe, a carrier-to whichthe cylinder is vertically adjustable and a beam extending across theweb and supporting all the carriers in common, substantially asdescribed.

3. In an embroidered web severing appliance, in combination, a pluralityof corrosive fluid feed pipes constitutin tubular arms provided withnozzles which bear against the edge of the embroidery of eachpattern-row, a cylinder through which each pipe passes, a coiled springwithin the cylinder attached at one end to the latter and at the otherend to the pipe, a perforated carrier to which the cylinder isvertically adjustable, a beam eX- tending across the web and passingthrough and supporting all the carriers, an eccentric located in eachcarrier and bearing on the beam, and means for operating the eccentric,substantially as described.

4. In an embroidered web severing appliance, in combination, a pluralityof corrosive fluid feed pipes constitutin tubular arms provided withnozzles which is edge of the embroidery of each patternrow, a cylinderthrough which each pipe passes, a coiled spring within the cylinderattached at one end to the latter and at the other end to the pipe, acarrier to which thecylinder is vertically adjustable, a racked beam eX-tending across the web and supporting all the carriers in common, apinion shaft, mounted parallel with the beamv and en aging the rackedportion thereof, and a era a for rotating the shaft, substantially asdescribed.-

5. In an embroidered web severing appliance, in combination, a pluralityof pipes constituting tubular arms provided with nozzles which bearagainst the.edge of the cated above the web for supporting the nozzlepipes, a corrosive fluid supply pipe feeding all the nozzle pipes incommon and divided longitudinally into two perforated chambers, andperforated collars turning on the supply pipe, each controlling oneaperture of each supply pipe chamber and each communicating with one ofthe nozzle pipes, substantially as described.

6. In an embroidered web severing apl pliance, in combination, aplurality of pipes row, a cylinder through which each pipe ar againstthe embroidery of'each pattern-row, means loconstituting tubular armsprovided with nozzles which bear against the edge of the embroidery ofeach pattern-row, a carrier supporting each nozzle pipe, a corrosivefluid supply pipe feeding all the nozzle pipes in common anddividedlongitudinally into two perforated chambers, perforated collarsturning on the supply pipe, each controlling one aperture of each supplypipe chamber and each communicating with one of the nozzle pipes, andmeans connecting each collar with one of the carriers, whereby on thelatter rising the collar is turned, substantially as described.

7. In an embroidered web severing appliance, the combination with aplurality of tubular arms each provided with a nozzle and means to urgethe arms to keep the nozzles against the edge of the embroidery, ofmeans to supply corrosive fluid to the tubular arms, means tosimultaneously raise the arms from the embroidered web and means toindependently raise them from the web.

8. In an embroidered web severing appliance, the combination with aplurality of tubular arms each provided with a nozzle and means to urgethe arms to keep the nozzles against the edge of the embroidery; ofmeans to supply corrosive fluid to the tubular arms, means tosimultaneously raise the arms from the embroidered web, means toindependently raise the arms from the web and means to vertically andindependently adjust each arm.

In testimony that I claim the foregoing as my invention, I have signedmy name in presence of two subscribing witnesses.

ARNOLD BOSSHARD.

